Wave Gauntlet: drag the white dot to move the corridor, the coloured dots to resize the gap,
click empty space to add a keyframe. Spider: click to add a block (top half = ceiling,
bottom half = floor), click a block to remove it, drag to move. Right-click deletes. Ctrl/Cmd+Z undoes; deleted drafts go to the trash.
Deco mode places harmless scenery that renders behind the corridor — pick a shape and
colour, click to place, drag to move, right-click to delete. Stamp mode drops whole
pre-made sections (slam, sawtooth, needle…) and shifts the rest of the level right to fit.
Portal mode takes two clicks: the first is where you go in (blue), the
second is where you come out (orange). They can be on the same column or far apart,
at any height. Crossing the entry column takes you through — there is nothing to aim
for. Drag the blue end to move it, right-click to delete. Works in Wave Gauntlet and
UFO, and both the checker and the bot follow them.
✓ Check catches gaps the wave physically can't reach and flips there isn't time to make.
📤 Submit checks your level, then copies it — send that to Arham and he can add it
to the game. Nothing here uploads anywhere; everything saves in your own browser.