While tricky, it's very fun game to play :) The sound effects compliment the bomb well and I like the art style.
If you want, please check my submission out too :) It's also about bombs, tho I think you got the bomb concept far better than me :)
I also managed to get stuck twice :)
First when trying to get into the hole with a bunch of time upgrades :
And for the second time when entering a new section after I restarted with first stuck moment:

So I avoided the hole with stopwatches and entered the sections more carefully and it all went well afterwards :)
Interesting, I have never tried gamemaker, and my current entry was made using python-arcade engine, but I tried a little godot, by fallowing brackeys Brackeys platformer tutorial on youtube and the engine was pretty nice to use. I didn't get proficient enough in godot to use it on a game jam tho :)