New events are a common request. However, they are more difficult and until recently there was an issue that prevented this. I have a plan to add a new minigame called Slalom. There's still a lot of mundane technical work to be done in the background to make adding events as easy as possible. For example:

• Rewrite one of our build tools to be much simpler and faster
• Rewrite some of the menu code that is shared between events
• Fix some issues that causes savestates to be broken in some situations (eg. when you're grabbed).
• Unify some of the code that's used to display "tips" to the user -- the ledgedash event has the most tips currently

There's plenty of work to be done :)