User blog comment:CITRONtanker/If IaLR Characters were Cuphead bosses/@comment-30384301-20180806110736/@comment-30384301-20180807103401

A few more ideas!

Starcade

The battle is set in Starcade's Retro Rebels arcade cabinet. Throughout each intermission before a phase, except the final phase, there will be three pink buttons, one with a race car, one with a stack of bricks and one with a set of gears. Cuphead must parry one of the buttons quickly, as Starcade will unleash a fire wall that will advance towards Cuphead and burn him if he does not parry in time. The speed of the fire wall will increase after each phase. Each phase will be determined depending on the buttons parried.

Before the battle: Starcade will smile and wink at Cuphead, before doing a 360 degree flip and pressing a button, releasing a fire wall which advanes towards Cuphead.

Race Car Phase: Starcade will warp Cuphead into a racing game. Cuphead will find himself standing on a red racecar while Starcade (in a racing suit) drives by and overtakes the racecar in her purple racecar. While Starcade's racecar is in front of Cuphead's, Starcade activates a cannon which faces towards Cuphead, which will shoot tyres, traffic cones and bombs. Tyres will bounce forward, traffic cones (sometimes pink) will slightly curve to home in on Cuphead while bombs will explode. At regular intervals, Starcade's racecar exhaust pipe will unleash flames at the racecar, which Cuphead can avoid by going to the red racecar's spoiler. Starcade's racecar will speed through the race track at turbo speed, before ramming into the red racecar, which will hurt Cuphead if he is still standing on the spoiler, before overtaking Cuphead's racecar again and repeating the same process. Once Starcade is defeated in this phase, both racecars will come to an abrupt stop, before both characters are being warped back out.

Brick Stack Phase: Starcade will warp Cuphead into a brick-breaking game. Cuphead will have to stand on a moving white platform this whole time, while Starcade will appear in a drone made out of pixelated bricks. She will drop a ball, which will continue to bounce across the screen at a moderate speed. If the ball comes into contact with the bricks, the bricks (sometimes pink) will fall. If the bricks and/or ball hit Cuphead, he will lose a life. All this while, Starcade will be hovering left and right in her drone, while firing pink lasers at Cuphead, which can always be parried. Once Starcade is defeated in this phase, she will jump out of her drone which explodes, before opening a parachute. Both characters will then be warped out.

Gear Set Phase: Starcade will warp Cuphead into a platforming game. During this phase, the screen will automatically scroll to the left with floating platforms. Fireballs will also rain from the sky, but a warning indicated by a warning sign will alert Cuphead that a fireball is coming down. Cuphead will have to fight a giant robotic version of Starcade known as Starcade-Bot. During this phase, Starcade-Bot will use two attacks. Starcade-Bot can use her eyes to fire laser beams towards Cuphead's direction. Starcade-Bot can also fire five missiles (sometimes pink) from her hands in a spread formation. Once Starcade-Bot is defeated in this phase, it will explode and reveal Starcade behind the controls. Both characters will then be warped out.

Phase 4: On Simple Mode, the battle will end after the first three phases are cleared. In this phase, Starcade gets angry and gains her battle armor. The arena will then be set on fire, and healthbars will appear which will change accordingly. Throughout the phase, there will also be a red target homing at Cuphead. Once the target is on Cuphead, the target will stop moving and flash for a split second before firing a missile which will cause an explosion in the said target area, before moving about again and repeating the same process. Starcade will then fight Cuphead herself with three attacks.

One - Starcade will fire lasers from her laser pistols, some pink and some purple, at Cuphead.

Two - Starcade will perform a flying kick, which Cuphead must duck under.

Three - Starcade will perform a slide kick, which Cuphead must jump over.

Once Starcade is defeated, she will be knocked out in a Street Fighters fashion.

Death Screen Quotes:

Race Car Phase: "Looks like someone's a little too slow today, eh?"

Brick Stack Phase: "The only thing you'll be stacking up is your collection of losses."

Gear Set Phase: "Yikes, that really grinds my gears."

Phase 4: "Game over! Would you like to continue?"

Kyoji

The battle is set in Kyoji's own training dojo. Throughout the battle, there will be three brick platforms, one on top, one in the middle and one at the bottom. If Cuphead touches a brick, he must move quickly because the brick will break, creating a gap which Cuphead will fall through. Another brick will fill the gap three seconds later. The ground is layered with hot lava, which will damage Cuphead if he eventually falls down there. There will be a stone platform at each end of a brick platform, which will not break when Cuphead stands on it.

Before the battle: A cloud of smoke appears on the right stone of the middle platform, revealing Kyoji. Kyoji will bow to Cuphead before doing a fighting stance.

Phase 1: Kyoji will resort to using ninja stars and smoke bombs in this phase. During this phase, he will teleport to a random stone platform at regular intervals with the help of a smoke bomb, though he can only stay on the right ones. If Kyoji appears on a stone platform Cuphead is on, Cuphead will take damage. He takes out three ninja stars and fires one forward, and the other two above and below respectively. Cuphead cannot avoid the middle ninja star if he is on the same platform as Kyoji. If he is one platform above Kyoji, Cuphead must jump over the ninja star. Likewise, if he is one platform below Kyoji, Cuphead must duck under the ninja star. Each time Kyoji does this attack, there will always be one ninja star which is pink.

Phase 2: Kyoji gets a black eye, before drawing his Sword of Elementia. He can now teleport to the left stone platforms as well, so Cuphead must stay away from the stone platforms while he teleports, as Kyoji can appear on any stone platform. During this phase, Kyoji has two attacks.

One - He can fire two blue sword beams that travel towards his direction in a zig-zag formation.

Two - He can fire a powerful ice beam forward, with only a split second of warning. Cuphead must not be on the same platform as Kyoji when Kyoji uses this attack.

Phase 3: Kyoji gets another black eye, before teleporting back to the stone platform he was first at in the beginning. He says an incantation, before the Sword of Elementia starts flying around and chases after Cuphead. While this is happening, Kyoji will fire ice blasts in sets of four, one at a time, while aiming at Cuphead. The last one will always be pink. He will not teleport around in this phase though. In Simple Mode, the battle ends on this phase, with Kyoji's head spinning uncontrollably and the Sword of Elementia shaking uncontrollably.

Phase 4: Kyoji will fall unconscious while the Sword of Elementia flies back and hovers above Kyoji, before charging up and releasing a spiritual being. The Sword of Elementia will fall beside Kyoji once the spiritual being is released, who will take up all three stone platforms to the right. The dojo will become wrecked as the spiritual being takes his place. He has four attacks, but a very large hitbox.

Earth - The spiritual being will display the earth element in his hand, before causing all brick platforms to fall at the same time. To avoid this attack, Cuphead must get to the left stone platforms.

Fire - The spiritual being will display the fire element in his hand, before summoning a giant fireball which travels from the top right of the screen to the bottom left.

Water - The spiritual being will display the water element in his hand, before causing a tsunami which covers the middle and bottom platforms (including the stone ones). To avoid this attack, Cuphead must get to the top platforms, but he has to be aware that he may fall down to take damage if he stands on the bricks.

Air - The spiritual being will display the air element in his hand, before casting a tornado which covers the middle and top platforms (including the stone ones). To avoid this attack, Cuphead must get to the bottom platforms.

Once the spiritual being is defeated, he will explode continuously, ending the battle.

Death Screen Quotes: 

Phase 1: "You lack focus. Pay attention and try again."

Phase 2: "Sorry, did I hurt you a little too much?"

Phase 3: "Perseverance is the key to success. You almost made it, don't give up now."

Phase 4: "I've seen glasses fight better than you cups."

Re-Peat Boss (Plane Battle)

The battle is set in the skies above Echo Creek.

Before the battle: Re-Peat Boss will laugh in his flying Moss-Bot, before covering himself up with the cockpit. The Moss-Bot's eyes will flash red for a few seconds, while displaying a sign that says "DESTROY!" which also flashes red for the same amount of time.

Phase 1: The screen will auto-scroll left in this phase. The Moss-Bot will not be present in this phase, as it summons twenty mosquito drones, which Cuphead must destroy in this phase. The mosquito drones will fly around in a swarm, with each one of them firing lasers forward. Some lasers are pink, so there is a good amount of parrying opportunities. Each mosquito drone is fragile and will blow up in about 30 - 40 hits depending on the difficulty. It is possible to take out several mosquito drones at once with Mini-Bombs, but Cuphead must be careful due to the huge number of lasers being fired at once. Once all mosquito drones are destroyed, the next phase will begin.

Phase 2: The Moss-Bot will reappear, with Re-Peat Boss looking menacingly at Cuphead. During this phase, the Moss-Bot cannot take damage, but the cockpit where Re-Peat Boss is in can take damage. Re-Peat Boss will reveal another weapon as he takes more damage, starting off with a mechanical finger gun.

Mechanical Finger Gun - It fires blue energy balls in a wave formation. There will be a pink energy ball every ten blue energy balls. When Re-Peat Boss takes enough damage, he will summon the mossile launcher.

Mossile Launcher - It will fire one mossile (moss missile) at a time, which will arc towards Cuphead before going straight and creating an explosion after a few seconds. The mossiles will not hurt Cuphead, but the explosions will. Unlike Dr. Kahl's homing bombs, Cuphead cannot destroy Re-Peat Boss's mossiles. When Re-Peat Boss takes enough damage, he will summon the mega sword.

Mega Sword - Every ten seconds, it will fire a sword beam that is about 1/3 the height of the screen, which will bounce around the screen 3 times before going away.

Once Re-Peat Boss takes enough damage for this phase, all three weapons will start malfunctioning. In Simple Mode, the battle ends on this phase, with the Moss-Bot exploding uncontrollably.

Phase 3: The Moss-Bot will cause a huge explosion, sending the cockpit Re-Peat Boss is in flying into the air and seemingly crashing. However, it turns out that Re-Peat Boss is in an escape pod, which even he uses to attack. Re-Peat Boss has two attacks in this phase. During this phase, the escape pod will continuously move up and down.

One - In front of Re-Peat Boss's escape pod, there is a laser cannon which can fire a red laser beam in three different ways, which will always cover about 50% of the screen. The top half, the bottom half or the middle.

Two - Re-Peat Boss's escape pod will occasionally send out a pachinku bomb, which will home in towards Cuphead. When it explodes, it will send spikes which fly outwards in eight directions.

Once Re-Peat Boss is defeated, his escape pod will explode continuously, while sending Re-Peat Boss himself flying.

Death Screen Quotes:

Phase 1: "We float like mosquitoes and sting like mosquitoes!"

Phase 2: "You know, it's amusing to know that you're the one who decided to challenge me in the first place."

Phase 3: "Perish, mortal! You're going down just like all the others!"