Very challenging! I got stuck/stopped playing somewhere. xD
Here is my feedback:
What did I like?
- The mechanics of the game.
- I liked the graphics.
- Excellent usage of the theme and the restrictions.
What did I dislike?
- There's nothing that shows me at what level am I.
Suggestions
- Add a score system.
- Add music.
- Increase players' speed when I press shift.
- Display the number of the current level and the total stages of the game.
- Change the colours of the game on every level.
- Whenever I finish a level. Display "Level Complete" or something.