This is quite a good game with it types of weapons and unlockables,however with only two directions to fire in,the game becomes challenging,if not frustrating,as enemies attack from all corners or charge from somewhere outside the screen(the orange enemies) and with only one hit,the character becomes instant roadkill,making weapons less useful in fully defending the character.Maybe this was made in a hurry for the competition,so it lacks in some areas but it is still quite decent for players looking for a challenge or just having a lot of patience to get all the medals,making some people happy at least.
(Note:If this game is going to be updated(after the competition),the firing could be better more health could be included with powerups to shield or slow down enemies and maybe a shop system.Anyway,this game has a variety of unlockables and medals and a challenging gameplay and it ha simple designs and music(a mute option could be added too) to give it an arcade game-like feel,so good work on this and good luck for the competition!