- VVVVVV -
I normally don't like hard platformers but this worked for some reason. The instant retry loop definitely helps. As probably does the soundtrack :).
There's an infamous section called Veni, Vedi, Vici which felt really great when finally getting right: https://www.youtube.com/watch?v=4CtiY5D6HCs
The source code to this game was published not too long ago: https://github.com/TerryCavanagh/vvvvvv
Not under a free license but it's actually still being worked on there, with community involvement.
11 years after initial release that is quite impressive. (For any software project really, but especially for an indie game.)
Next version should be out soon it ssems: https://github.com/TerryCavanagh/VVVVVV/issues/267