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| Extra Mode | 100% | |
| Description: After clearing the 5th and final stage during Arcade Mode (once you have defeated the final boss), the end credits will scroll. Following that, you will see that "Extra Mode" has been unlocked. Choosing this mode as opposed to the normal Arcade Mode will make each stage in the game tougher, as well as making the bosses more difficult to fight. In essence, it is a more difficult version of the game that can be unlocked by completing Arcade Mode once through in its entirety. | ||
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| Play Previous Stages | 100% | |
| Description: Unlock the ability to play previously-beaten stages How to unlock: Complete that stage. After, you will have the option to play that stage whenever you want. | ||
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| Tip for Fever Time! | 50% | |
| To get to a bonus level (completion = fever time, better weapons temporarily) you must shoot the bigger space invaders that fly across the top of the screen. Complete the bonus level's task and you get Fever Time. | ||
| By: LordDominico(1257) | ||
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