Needs Some Work....
The game is a good start and has loads of potential... However with a a little more polish and time it could become a great game. Heres a couple of ideas that could help....
GRAPHICS - Well it's a block and lines.... Maybe use a sprite character or a character of your own other then a block for starters. A background of some sort would definatley be worth while and preferably not a solid colour. (2/5)
SOUND - Well there was no sound or music to speak of... Adding sound effects or music would definatley be a plus. (0/5)
PLAYABILITY - The game itself was a good premise and had a certain degree of platfroming difficulty.. So i'm giving it full grades for this category... (3/5)
I gave you a passing score to help you through the portal, and i hope that my review helps you improve on this or helps you in a future creation.
Not bad for a first...
But it needs a auto-save feature
It needs some changes
The idea isn't bad but here's what you can improve. The block can stay on the yellow thing (because if you leave it there, it falls off), some backgrounds would be nice and more levels would be better. Upload it again when you got those.