how do you restart?

Like others said, simply "no". The idea is great and intriguing, but the execution is.... just no

Instructions:
You have to put the blue box to blue space and red box to red space
You can die, but not get too close when dying or sth like that. While you are not supposed to kill the enemy, you can still get the medal, despite killing that annoying red fucker (you better not change that, the game is awful as it is already).
After you put the boxes in their place, cage unlocks and you have to touch the pink monster (probably homosexual character?).

The other medal, just get above the head of the red guy, using block can help, and try to get the timer to zero.

1. I have no idea what to do cause there's no instruction whatsoever.
2. I respawn everytime I kill an enemy. Why?!
3. The boxes are a joke to drag around (as someone said)
4. The overall controls are horrible.
5. No. Just no.

Lack of instructions really hurts.

Listen, while I appreciate that you're releasing a ton of games, it feels you're putting not a lot of effort into them. What you're doing is junk piling games onto the Portal that's really hurting the quality. What you should consider is instead of release game after game immediately, you need to be patient and take the time to make good games instead of uploading projects.

Dragging those boxes is a pain. They get stuck on invisible walls and failing to be placed on the spots. For some dumb reason you sometimes cannot move them at all upwards or to the right.