This game is quite fun to play. Here are a few points you can consider to take this game to a higher level -
- Make sure to constraint the camera till the last bounds of the level so that the scene outside your level is not visible, this makes games more professional.
- The player sometimes doesn't die on hitting the enemies and that chemical.
- After the player dies finishing all the 3 lives, sometimes it's taking too long to re-spawn.
- The controls and the movement mechanics could have been better.
- Lookswise it's okay but if you implement the particle effects and other such visual effects then it would be awesome.