Let's get it out of the way: This is a bit of a skill issue, but I repeated one level so many times I'm just convinced that the spikes are way too pixel perfect jump. That's it, that's my negative feedback. Now, the positive, this was quite the fun little game. I really enjoyed the visuals, like I already like the pixel style, but here it also is executed well and really smoothly. I liked the characters too, and what I will assume is the illusion of the choice with the direction. Got a chuckle out of me at the end too.
Great work! Oh wait one thing to note still, as I was dying on one level over and over I encountered two bugs; 1. One obstacle spawned way too close so it insta killed me when the level restarted, or that how it felt to me (I didn't think I moved at all), and 2. I managed to apparently kill myself in a explosion AND spike, so the death trigger was played twice -> animations repeated and the new level loaded twice (second time with slight delay so I had already like walked few steps on the previous load). But nothing actually that bad, just noted in case you wanted to know \o/