Sorry for my English
from my question, you should have guessed that I’m a noob to game development. yeah, I Am.
I want to make a mega man like game. first I tried unity but exporting and the engine was too complicated for my project so I gave up,
I heard from my friend that defold allow developers to export without any setup. it’s just like pressing a button to export
my question is that: is it a good idea to make a mega man like platformer in defold?
Yes! That would totally work. There are in fact multiple plugins which can help you create a platformer game in Defold:
Also an old (but still valid) tutorial/manual on platformer games in Defold: Platformer Defold tutorial
I would also look at Ben James repo. It’s full of little diamonds!
You should really try something like Stencyl or Scratch before getting started with Defold. That would be my honest advice. Defold is absolutely fantastic but, like all professional game development tools, it’s not so easy to learn as scratch or stencyl (neither of which involve coding).