Timeounts in this kata are indeed problematic, because (at least in JS) even valid solutions have ~40% chance to time out. Test suite is very unbalanced and times vary between 4.5s to timeout.

You could try to submit your solution a couple of times, but if it does not pass after 3 times, then you probably still have something to optimize.

131 game maps will be presented. (31 basic and 100 random maps)
However the number of "tests" will be higher, since for every presented map several assertions will be done.
You can see how many maps you solved in the logs.

It is modeled as being dropped from above the playing field.

you have to keep track of them on your own.