Very interesting game, after finishing the game, there are some bugs and some levels are difficult, and other questions I want to ask (I can't guarantee whether it is my computer's problem, but I haven't had this problem when playing other types of games so far): 1. In the sixth level, if the rendering distance is adjusted to 25, my computer will be obviously stuck, so that I can't operate, but the following problems will not occur at 5-15. I tried to check the computer temperature, and it seems to be stable at around 55-60 degrees. It is not caused by the excessive memory usage of the game, so can this level or rendering distance be optimized to a certain extent; 2. Is the maximum size 7? Is this the maximum size I have played so far (I try to reach S as much as possible in each level, but unfortunately some can only reach A or B), or do I need to collect special props to have hidden sizes? ; 3. There is a high probability of a bug when pressing W to sprint, for example: causing problems in the level of dodging the fireballs fired by the boss; or the roadblock fireballs set up around the boss will appear next to the player, causing points to be deducted continuously, making it impossible to complete the level; and in the final level, there is a probability of getting stuck outside the map when pressing W when attacking the boss (this is the most troublesome problem for me, and the only way to solve it is to exit the game and re-enter). I hope it can be fixed, thank you!