Review of Rock Mountain
The level starts nicely. The first section contains sizeables with slopes, which also have real physics, which I liked it. Since you placed statues which made of rock, the level title makes much sense. The red coins for running emeny is a good ideam, since it warns the player about it. Also it contains bullet turrets moving out from pipe, with a red bullet that moves back itself, which is the neat thing. The NPC variety is good and fits for a mountain. For first section, it is nicely done. It also contains a power-up called Super Flower (if I remember), which is neat item.
The second section is decent. While it contains the same stuff, it has more slopes and less emenies. The first screens have downward slopes, which requires jump button abuse, I suggest make these kind of slopes less. The part with sizeables should have more flying emenies, in case to make it less harder.
The third section is a cave section, basiclly slide down till you the section stops moving. Neat one.
The fourth section includes falling rocks, slopes and falling cave tiles. While the rocks and falling cave tiles (those yellow ones) are good, the slopes here are too many for me. Like in section 2, some screens have very downward slopes that requires jump button abuse to get up to progress. I suggest removing them as long as it doesn't require pressing jump button a lot.
After that, I destroy the goal point.
Overall, this was a decent mountain level. It has some nice ideas that made the level good, such as real slope psychics, a neat power-up and the underground slide section.