Neat platformer! I included it in my LibGDX Jam compilation video series, if you would like to take a look :)

I really liked this. It had some nice touches in terms of the actual feel of the game, plus the switching gravity effect worked really well. The lighting and music worked well too.

nice atmosphere and puzzles

hidden feature: AltGr ;)

nice music, and cool idea! would rather if could use cursor keys though.

Great puzzle game! Some parts when the gravity changes confuses my mind, well done!

Excellent game! great graphics, great lighting, the controls work well (despite not using cursor keys ...grr) only prob i had was some of the level design; I think I subverted the puzzles and wound up at the door having skipped large areas!

what song was that? i'm sure i've heard it before..

Very cool idea!

Nice concept! Reminds me to VVVVVV :P

A note: second hint is not necessary. You actually need to learn to double jump to get there ;)