I don't know why, but suddenly, when I placed a bob-omb it was red immidiatly and didn't explode.

Yeah, I gave up the first few seconds because Mario moves way too slow.

Yes, Mario moves very slowwww.... Apparently, this problem is actually a little more dramatic than I thought. But there actually is a reason for that.

The code used for Mario makes it so that he stops moving and animating when he snaps to a 16x16 block on the imaginary grid... He currently starts moving at a speed of 1 (1 pixel per step). Originally, this was a 2. But when I tried increasing it to 3 with the Mushroom power-up, he did not snap on the grid because 3 does not go into 16. I fixed this by turning the speed of 3 into a 3.2 (3.2 times 5 is 16), but could not fix this with 5, 6, or 7 because Game Maker only goes so far to the right of the decimals. I didn't want to have the power-ups make him start at 2, move to 3.2, then 4, and then suddenly appear at 8 next time you get one, and I didn't want range and placement power-ups to have eight collectable until full, and then speed having only two, so I start him at a speed of 1. If you take the time to collect a Mushroom in the game, your speed doesn't stay low for long at all. I just had to make each number divisible by 16... otherwise, this wouldn't be a problem. and I would start at 2 or 3, then go up to probably 8 from there.

I WOULD increase the room speed from 30, but a Mario at a speed of 4, is pretty fast to control at a room speed of 45... If there are any other suggestions, maybe how to fix the speed problem, Bob-omberman's full version is still in the works.

Better than Mallow Maze, though, you gotta admit. ;)