Thus, after minute and half, crate with ID=4 is hit, and trigger blocks in battle arena locks access to gems/bases/warp laps/whatever anymore.

That would be useful to treasure hunt, to check 'how many gems can you get in certain time' without checking time manually.

Amount of crates at system is customizable as well, if limit of minute and half seems to be too high/low.

Now, feedback please.