This might be a bit off topic but also interesting for a Speedruner to learn/find more about there game. Creating stages for friends is something I would be exited to see in the future. Also I like to invest a lot of time to bring the topic close to people so everyone with some time can do it. Also give a good base for experienced hacker to take off and crack the game open even more.
Current Level Hacks
- Super Castlevania Hardmode Hack
- Super Castlevania Other Castle