Keep Alive(Demo)

Basic control:
'A':move left
'D':move right
'space':jump
'L':move faster
'J':shot blue beam
'M':fire off a big fireball

Once you find no enemy in the world,you can press 'enter' to face next wave that is harder than before.
Every time you keep alive through 5 waves,the scene where you take actions will change.There're 3 different scenes at all.

Because of identity of Chinese freshman,this game is very simple and has bugs from time to time, inferior to other games by Greenfoot or Unity.
I promise that I keep updating this game(add music, improve actions of all actors, purify UI, add more enemies......)
I will make it no longer a demo!
Hope you can have fun :）

I'm happy to hear some suggestions or comments if you're willing to make.
Thank you!!!