It's really really good considering it's your first. But there are some things here and there that's annoying. Like the pink stuff suddenly starting to appear, and the lack of instructions. It took me about 20 deaths before I realized I could move with left and right. So I spent a lot of time trying to complete it by just jumping.
Well.. I have to say that you've done a great job for your first game :P
I just felt that the stage was too long for 1 life.. 1 mistake and you have to repeat the whole thing again.
It may be challenging, but it gets boring if you repeat the whole thing.
If we say the game is in hard mode, then you can just add easy mode (which has checkpoints or/and extra life to give some motivation for many players to complete this game.) :P
This way, you will attract more people to the game <,<
also, I encountered a bug or 2 ... but it's nothing major.
Overall, this game was fun and challenging. I enjoyed it!
keep it up! ^^
Its fun for a bit but the lack of content makes it repetitive and boring after a while. Not bad, good start.
your game was ok for ur first but like he said your jumping raelly was bad but i loved the end sorta