At least the shield can be activated when it is actually empty. This even works right away at the beginning of the game. The shield will then never deplete and protects from any damage, until a shield power-up has been collected (in which case it will be depleatet normally, but can be re-activated again when empty).
I did not check this with the speed power-up yet.
At least the shield can be activated when it is actually empty. This even works right away at the beginning of the game. The shield will then never deplete and protects from any damage, until a shield power-up has been collected (in which case it will be depleatet normally, but can be re-activated again when empty).
I did not check this with the speed power-up yet.