The bowser in Scratch
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bowser
It’s impossible to talk about Mario without mentioning King Koopa. He’s the boss of everyone, Koopa. As the series goes on, different versions of Koopa appear, but I think the Koopa from the original Mario on the Famicom is the creepiest.
#01 Super Mario Ultimate Battle
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- 587
- 17,566
- ©
- 2020.11.15

#03 Buzzing Through the Sky: Battle Recreation Updated
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- 2,350
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- 2020.5.30

How to play
Action | Key |
---|---|
Left and right shifts (esp. in historical kana) | LEFTRIGHT key |
Firing | space bar |

The biggest standout feature in this Scratch project is the movement and behavior of the boss character "Boom Boom"! He doesn't just move in simple patterns—he's got complex behavioral routines. Initially, he just moves left and right, but when he takes damage, he retreats into his shell and becomes invincible. After that, he bounces around the screen while jumping, attacking the player. You can defeat him by stomping on his head three times, but his movement pattern changes and gets trickier with each hit. The technical complexity really shines when he emerges from shell mode—it's sophisticated animation that combines coordinate movement with variable control.
#04 Recreating the Battle with Larry, One of the Koopa Kids Updated
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- 1,610
- ©
- 2020.5.29

How to play
Action | Key |
---|---|
Movement | LEFTRIGHT key |
Jump | UP key |
Crouch | DOWN key |

In this Scratch project, Larry Koopa's movement patterns are absolutely mind-blowing! He constantly monitors the opponent's position and creates this smooth acceleration-deceleration dance that tracks toward the player. The real genius is in how they've layered multiple "if-then" conditional branches to trigger different behaviors based on player coordinates and costume states.
The coolest part? The synchronized platform mechanics! Larry Koopa actually jumps and switches attack patterns in perfect timing with moving platforms. Using clone spawning and variable control to pull off such sophisticated enemy AI is seriously advanced stuff. Plus, all those micro-adjustments to make the movement look natural? That's some pro-level polish right there!