Well that's partially good news. Maybe this needs further testing after all.
Looks like I'm going to open this up to everyone...
X to jump
Down & X to jump down off of a lego platform
C to swing your hammer
The lego platforms are jump-throughable
Everybody keep in mind that this is just a test level in an unfinished state, so there's a lot of stuff missing (some sounds, some sprites, the "About" screen, etc.). At this point I'm just worried about the graphic glitches that Vrav mentioned.
Anything else, like collisions, player speed, and sound volume and such, is being tweaked.