This was really impressive, and fun! I've only done the first level so far (couldn't beat the spider thing on my first try), but will try to get farther later.
The mechanics are a good use of the two buttons, and the way they feel (speed and timing) is really nice: keeps the game energetic and flowing but not overwhelming. At first I wasn't entirely sure what the point of the shooting was, particularly around the smaller enemy things in the first level, can you kill them? do you get a reward? I kind of just kept going forward ignoring/dodging them, which might've been their purpose. But, when it got to the end of the first level with the spider battle, the shooting mechanic made a lot more sense and that was a really cool way to tie it in with the moving and jumping.
Also quite impressed with the scope. The art is all detailed an cohesive, as are the different mechanics of both the player and the enemies/obstacles, and I'm sure there's even more after the first level. Great job!
feel free to check out my entry and leave any feedback: https://itch.io/jam/2buttonjam/rate/404017