Just have either homing, spread, machine or practically anything beside your standard pea shooter, this boss is extremely easy to memorize his pattern.
To unlock contra and super contra, you need to beat the game to unlock challenge mode, then beat 4/40 total challenge modes to unlock contra, 8/40 to unlock super contra, more will unlock other goodies such as other characters, comics, interviews, and what not.
I am a PC gamer, and also have a NDS now, but without access to a Nintendo Wii until End of 2007.
Currently playing: Super Smash Brothers Brawl(Wii), Mystery Dungeon: Shiren the Wanderer(DS), Dragon Quest Heroes: Rocket Slime (DS), WiiFit(Wii)
Games Recently Beaten: Final Fantasy Crystal Chronicles: My Life as a King (Normal; Very Hard after the next DLCs become available)
1 word: RTFA
