Hello,
Thank you for playing and for the feedback: we are noting down your points. We plan to add to future projects aspects like aesthetics for different biomes, and unique enemies for each sector. We are aware that this prevents monotony and helps player's orientation.
You can indeed go back to the Town once you find an elevator serving as Fast Travel point.
Thank you for your comment on the level design. That was my responsibility. Indeed you may feel funneled at the beginning until getting the second ability (Double Jump). I could have opened the map more from the start. After getting Double Jump, the level design opens up with more branching paths and several routes to get to the following abilities.
If you finish the game: in which sequence did you acquire the abilities ? Normal sequence is: Wall Jump, Double Jump, Dash Upgrade, Gun Upgrade, Roll.
I designed the levels to include 2 sequence breaks to acquire the abilities in several different orders, and one sequence break allows to complete the game 100% in less than 18 minutes.
Cheers