Link Battle
Metal Gear Acid
- PSP
- Unlock
After clearing Stage 06, Link Battle will be available by going into Options from Intermission.
After clearing Stage 06, Link Battle will be available by going into Options from Intermission.
| Gives Card No. 201 - Asaki Yoshida (EUR version only) | cygnus |
| Gives Card No. 202 Yu Saito (US version only) | YEBISU |
| Gives Card No.173 - Viper | Viper |
| Gives Card No.178 - Mika Slayton | Mika |
| Gives Card No.182 - Karen Houjou | Karen |
| Gives Card No.184 - Jehuty | Jehuty |
| Gives Card No.199 - XM8 | Xmeight |
| Gives Card No.200 - Kosaka Yuka ( US version only) | Kobe |
| Gives Card No.200 - Kosaka Yuka (Japanese version only) | Sabrage |
| Gives Card No.200 - Yuka Kosaka (EUR version only) | lepus |
| Gives Card No.201 - Asaki Yoshida (US Version) | umeda |
| Gives Card No.201 - Yoshida Asaki (Japanese version only) | Nomel |
| Gives Card No.202 - Saitou Yuu (Japanese version only) | Elyts |
| Gives Card No.202 - Yuu Saito (EUR version only) | serpens |
| Gives Card No.203 - Eri Shibuya (EUR version only) | grus |
| Gives Card No.203 - Shibuya Eri (Japanese version only) | Maeb |
| Gives Card No.203 - Shibuya Eri (US version only) | Roppongi |
In the market, there is an orange can. Proceed to kick it behind the counter of the Jet Bakery. A message will say you have received a free 1000 Zennys. Leave the room, and return to have the can reappear. You can do this can many times as possible,
Note: later in the game, the amount will be bumped to 2000 zenny each.
Beat the game, and after the credits and endscene, an option will appear on the title screen that allows you to change the difficulty. Now, you can choose between Normal and Hard modes.
| Easy Mode | Beat Normal Mode under 3 hours or just beat Hard Mode. |
| Woden's Brand | Earn all 8 tolkens after completing every mini game challenge with a gold medal |
Catch on fire near the end of a level and when you have 1 HP left run through the exit portal. Next time you enter a level your health bar should be at 0 and you cannot take any damage. The best level to do this in is Return to sleeping Village. The boiler guards at the end can catch you on fire quite easily.
Pause the game, simultaneously press and hold R, then press down, up, square, triangle, triangle, circle, down, up, and then simultaneously press square and triangle. (if you entered the cheat correctly, cheats will be selectable at the pause menu screen).
After completing the final "Crown" level at the Prince island, the King will speak and suddenly everything gets changed into sprites. The game title in 8-bit graphics will appear and players are treated to a short level of 2D Katamari Damacy with the game credits rolling at the same time. Press X to jump and use the D-pad to move in this mode.
By collecting 100% of the 2,434 objects in the game, your island's name board changes from wood to a strobe light name board which has many colors.