Drop to 0 lives and half a hea...
	Exit Level...
	Full Replenishment...

Pause the game and hold A+B+UP+Start, then unpause.

Press Start to Pause game-play. Then, press A(3) to return to the Channel Selection Screen. To change weapons, select "S" to enter the shop.

Press Start to Pause game-play. Then, press Down + A + B + Start.