PROs:
Top down shooter with power ups to your fire.
movement is pretty good, controls are intuitive.
CONs:
Enemies just materialize, some times on top of you.
No scoring system.
Weapon range gets shorter as you power up.
Game gets laggy as too many enemies are on screen.
No way to die.
Comparatively small play area that is static.
Conclusion: Game was fun as first, but then became pointless as I realized there was no score, no ending.