Here are some more.
Red
Danger level: 1 - W
These tiles give you visions of Level 12 prior to its destruction.
Pink
Danger level: 0
These tiles will spawn a Chesire on the same tile which will self-domesticate with you.
Purple
Danger level: 2 - E
These tiles will teleport you to a fake version of Level 12.
Rainbow
Danger level: -1 (-1 means the tile is OP)
Rainbow tiles make you OP.
Pastel Blue:
Danger level: 0 - C (C means Chesires are affected but other entities are not)
This tile sends you to a random white tile. If you and your Chesire both step on it, you will both be teleported to the same tile.
Bronze:
Danger level: 3
This tile changes the position of every tile in level 20 (except the burgundy tile and itself). Like the burgundy tile, there is only one bronze tile.