For the engine to load, you must load the extensions with sandbox turned OFF.

Also, to get a grasp on how the attacks work, [if you're a beginner] then check out the "example attack" block in the attack sprite.

Dusttrust.

Help needed + thank you!

New attack.

Ererererer

Underfell, sprites by ilovecookies.

explode

screenshot

jepic

attack i made for fun, don't mind sans not moving out of the way of the box.