Nice game!
I noticed there is no fullscreen toggle (at least on Linux).
The concept is interesting, esp. how dynamites are dangerous and helpful at the same time.
I think the difficulty peak in the second phase is a bit too much, I would have liked some level to get familiar with the horizontal throw first. Eventually I could never make the big horizontal jump from the top-right, although it seems possible with a very precise timing. Instead, I just waited for the dynamites to align themselves so I could do a double explosion jump and directly reach the higher platform.
But it’s not something I could repro 100% as I don’t really remember how I manage to align dynamites vertically by throwing them horizontally, so I didn’t feel too satisfied about it… but finding shortcuts was still pleasant overall, and certainly the way to go for speedruns!