Hulk, The

Select the "Code Input" selection at the options screen, then enter FLSHWND as a code to unlock this option at the cheats menu. The Hulk will regenerate faster.

Select the "Code Input" selection at the options screen, then enter NMBTHIH as a code to unlock this option at the cheats menu.

After you defeat Ravage and passed the Gamma Elites, you will reach a "door". Two old Bosses will return for revenge (Madman and Half-Life). Deplete half of one of their meters. Madman will escape, will return in the last level. This time,
take down Half-Life. Use the Air Gamma trick. This time he stays defeated.

Unless you are Super Hulk, Alphas can withstand a full powered gamma blast, but soldiers cannot. You can tell them apart by the color of their uniforms.

When a tank has its shield up, you cannot go through it, but your Gamma Claps can. It also reduces the withstanding. You will find health and rage.

Select the "Code Input" selection at the options screen, then enter GRNCHTR as a code to unlock this option at the cheats menu.

Select the "Code Input" selection at the options screen, then enter TRUBLVR as a code to unlock this option at the cheats menu.

Note: This will also unlock all of the challenge modes.

In challenge mode, go to time attack mode 1. Wait until the soldiers appear. Go to either side of the building. Pick up a soldier, jump, and throw him off the building. Sometimes another soldier will wave good-bye to him.

Select the "Code Input" selection at the options screen, then enter FSTOFRY as a code to unlock this option at the cheats menu. The Hulk will have one hit kills.