This is a cool concept, and adding a timer would be really cool. I could see this being a speedrun, especially with the fast paced music. That said, there are a few things. 1st, the background is a bit nauseating. I had to take frequent breaks, And the player was hard to spot at first. Maybe making them a color that doesn't appear elsewhere could help with that. Lastly, there is no pause button to get out of the game, so I had to task manager it close. All of that in mind, its a really cool concept, and I love the use of Gamemaker, I always love to see it get some rep. Good Job!