Controls are pretty basic, if scattered… arrow keys to move & Z to jump (why not up, or space?)
Actual movement is slippery and loose, kept on getting my jumps gimped by touching ledges, or bumping against ceilings to early, and I only completed level 3 out of obstinance.
Level 4 is impossible, the loose controls lead to me bashing my head against the third ice-spike 100% of the time.
Otherwise, the levels are nice and self contained, the layouts are simple enough to figure out with one pass or so, and the sprites, while fairly simple, are detailed enough to not distract from the gameplay.
Would give this a 3/10, and that’s because the level archetecture is too cramped, and the character sprite too big, fix that and it’d be 5/10