On the high score table enter your name as "FUNNY FACE". Now restart the game and pause it; Type "WELL ARD" to activate the cheat. You need to enter both of them. Use the following keys:
'1'--------------Increases your boost by 100
'2'---------------Fills the spreadshot meter
'3'---------------------Gives you smart bomb
'4'--------------------Fills the canon meter
'5'------------------Fills double shot meter
'6'----------------------Gives you 500 boost
'7'-----------------------Fill up life meter
'8'---------Gives you a shield for your ship
'9'--Gives you a shield to put on the people
'0'---------------------------------Not sure
'-'--------------------Fills the canon meter
5400 | 0101 | 3901 | 2602
9902 | 4303 | 9003 | 6904
3305 | 9305 | 3406 | 0407
6407 | 2008 | 7408 | 4709
3810 | 0511 | 6811 | 3212
0213 | 8213 | 5014 | 1015
8215 | 5116 | 0117 | 7017
5518 | 2819 | 9919 | 7320
2521 | 0622 | 3722 | 1223
4523 | 4124 | 1825 | 1926
9726 | 5927 | 0528