Time attack mode also lacks big rings, which give 50 rings if you have all emeralds. I am not familiar with how bonus stages or special stages could affect competition but figured they should be considered along with any input anyone else has on the subject. Alternatively, the lotto could be prohibited, similar to the slots in Sobeing prohibited (maybe this could be applied to Sonic 2 Casino Night levels). Unless there is a way to loop back to the lottos, without super forms, they can only be entered once and the chart would have no reason to be removed. Other charts, such as Casino Night 1 & 2 in Sonic 2 had been removed and these charts look like they could suffer the same fate with the current ring attack stats.
Currently with super forms allowed, Studiopolis 2 has a lotto that can be abused to get an unlimited amount of rings (well, up to 999 rings), and makes the stat a bit trivial to achieve. This game has a lot of similarities with Sonic 2, Sonic 3, and Sonic & Knuckles and super forms were prohibited on those charts. Points from a falling signpost should be limited to 100 points.Should entering bonus stages or special stages be allowed?.
Sonic Mania charts have been up for a few months without any game specific rules so I am starting this thread to address this.