Collecting the same powerup more than once will improve the weapon.
Limit it to 5 tiers.
Random ideas:
2nd tier of cannon could be faster fire rate.
3rd tier could add a rear cannon
4th could add a front/diagonal cannon
5th could add a rear/diagonal cannon
1st tier of rocket will be a single rocket fired
2nd tier, alternating dual rockets
3rd tier, dual homing rockets
4th tier, alternating rockets + homing rockets
Other weapons might just have their fire speed increased. Should make things more interesting, whilst requiring less weapon types to be implemented.
Another idea is that when the player loses a life, remove an entire tier from all weapon types.
Collecting the same powerup more than once will improve the weapon. Limit it to 5 tiers.
Random ideas:
2nd tier of cannon could be faster fire rate. 3rd tier could add a rear cannon 4th could add a front/diagonal cannon 5th could add a rear/diagonal cannon
1st tier of rocket will be a single rocket fired 2nd tier, alternating dual rockets 3rd tier, dual homing rockets 4th tier, alternating rockets + homing rockets
Other weapons might just have their fire speed increased. Should make things more interesting, whilst requiring less weapon types to be implemented.
Another idea is that when the player loses a life, remove an entire tier from all weapon types.