Thanks for replying!)
I'm using Game Maker. Never did anything like that before, so selected it randomly. So I really don't know is this a good platform, or not. It has built-in mechanism to show sprites on screen and check collisions. And besides that it have many stuff for beginners, as far as i can see. But in the end you still have to write tons of code.) Built-in programming language is not so bad.
Actually i spend most of time on rewrtiting platforming engine, at least three times, and working with sprites. Sprites is really a headache. Just to place enemy parts on right places pixel-accurate takes hours. Unfortunately i'm not artist at all, i'm more into music.) If i could find some people to draw some arts for game it would be great.
Now i'm working on monster's code. To have a couple of them not just walk left-right, and fly after character, you know.) Alongside adding content to game: more breakable stuff, levels and other.
Also i need help on sorting sounds pack to use some in game. I just haven't time for that. If anyone could help please write. Problem is to name a ton of .wav file in accordance with their content, so i can use right sounds in right places.) 123.wav -> "falling in water.wav", for example
If anyone interested you also can contribute a level. It have to be a .PNG file not smaller than 256x192 with some territory. Full freedom here. I will place special objects like "floor" and "chandeliers" where needed.
Aso any other help, and just ideas is appreciated.