Thank you for your feedback!
Let me clarify a couple of points. I actually find the game challenging and enjoyable; for instance, my friend managed to survive for 110 seconds. I admit it was my oversight not mentioning the mechanic where getting hit by an enemy bullet disorients the player, making it difficult to aim (to remove this effect, the player needs to collide with a wall). I have included all damage values, life points for flowers and the character in the game description. Additionally, the character has a 1.5-second immunity upon taking damage. I don't think a backstory is necessary; the goal is simply to survive as long as possible.
Thanks again for your feedback; I hope I've clarified any unclear situations. Yes, it was my mistake not detailing these aspects. I hope you enjoyed the g ame!