Minecraft can freeze!
how to replicate:
/gamerule randomTickSpeed 1000000
Now:
-fire will float and doors will also
-u cannot make nether portals
-commands will not work!
-F3 And d will clear talking menu, but pressing up will show lines
-impossible to save! and closing is only possible by ending javaw.exe in taskmgr.exe at least who would do this cmd