Now I'm sure I will get an e-mail from someone claiming that eight pixels on the ship are different and the firing rate is 100,000 of a second slower or something but who cares as far as I'm concerned its perfect :)
One thing I noticed was the number of shots fired and percentage hit at the end of the game, it's just like the arcade version. I would like to recommend this game to everyone who liked the arcade game, BUY IT! Just don't buy it at Funcoland because they want 30 bucks for it! I picked up my copy at a pawn shop for 8 dollars, I know what your thinking 8 bucks for a Nintendo game!?! Hey sometimes you have to splurge :)
______________________________________________________
CODE/EFFECT . . .
XVOKVUXK/Infinite lives
PAKKKILA /Start with 1 life
TAKKKILA /Start with 6 lives
KPNIPZEA + GANIZZIA + AAVSIZPA/Press START for next wave
GGVSGXOX + EZVSIZPE + UGVSTZSE/Press START for extra life
OXSTZPSX + YESTLOPY/ Can't be caught by tractor beam!
GXEVPAEI/Start with twin shots
ATNVSAVZ/Become invincible
GXOKOTEI/Play challenge stages only