
I think it would be great if Runouw could add the ability to play as Luigi in the standalone Level Designer. As of now, the only way to do it is in the full game, and he has to be unlocked... and I'm sure most people here use the standalone instead, because of missing cookies and whatnot...
2013 was declared to be the Year of Luigi, and maybe to celebrate it, we could add Luigi to the standalone Designer somehow, or make an alternate Designer which uses him instead of Mario. Either way, I think Luigi could offer some new possibilities for gameplay, so it could still be nice. And I don't think it would be hard to implement, since he is in the main game and all...
If Runouw were to read this request, I'd really appreciate it if he made this a reality.
Also, add Spinning Hearts