Thank you for the comment!
Yes, you are right. The game could use a tutorial, and a big remake of the user interface, also! :D It will need also new sounds, a setting panel to adjust them, and a lot of other things I am sure will pop up if/when I will try to re-work on it. You are right, perhaps it is only a matter to resize the collider. I did them really fast so I could submit the game, and I really didn't test them as I should. I would really like to do a game with a lot of pick ups, puzzles (I love them!), floors and enemies. I would really like to do it in a "Haunted House" more than a spaceship, because if you like the horror genre, I think it is perhaps "an obligation" to do one of those. Even so, the original idea of this game (not the one I had time to implement) is really a lot more complex, with more enemies and levels, so I will keep it in mind to expand when I have had more experience.
Thank you for playing!