Yeah the mobile version SUCKS! I've tried it myself, and if you can get it on the desktop, do it. Thankfully for your map you took the troops from Green Graveyard which were already IDed. But seriously, 5 bucks for no save titles, limited property customization, no text, and no scripting!? What a rip off!
Well I fixed some stuff with collide sets right when blocks are placed, and if you jump on air, it may be because I don't know how to get the jump to only be available on the ground
dsfops here's an example (for no gravity or air friction)
vel = vel / 1.05;
keys.isDown("w") ? {
vel = vel + [0, 0.25]
} : {};
keys.isDown("s") ? {
vel = vel - [0, 0.25]
} : {};
keys.isDown("d") ? {
vel = vel + [0.25, 0]
} : {};
keys.isDown("a") ? {
vel = vel - [0.25, 0]
} : {}