Nesine's Space Invaders includes eight powerup types that fall from destroyed aliens toward the player gun, collecting one applies its effect immediately on contact.
Offensive powerups include rapid fire for increased shot frequency, bomb for area-of-effect alien clearing, and score multiplier to amplify all points earned during its duration.
Defensive powerups include the personal shield for temporary protection and the indirect benefit of rapid fire clearing the formation before it descends too far.
Not all alien kills drop a powerup, drops are conditional, so positioning under a falling powerup item while continuing to dodge alien shots is a dual-attention task.
All eight powerups are local mechanics that work offline with no internet, account, or purchase required.
Nesine is a classic arcade app where Space Invaders has 8 powerups