If your opponent is immobile, allow them to get counted out instead of attacking them and risking damage.
If you are fighting in the Electric Arena and a piece breaks off of your opponent, push it or leave it on the "shock floor" in the middle. Your enemy will keep getting shocked and take damage even after the robot leaves the grid. Likewise, if you drop a piece of yourself on the grid push it off so that you stop getting shocked.
After you use up your time while repairing, go back to the menu, back to HQ, and then return to the repairing screen. Your time will be reset back to 30 minutes. This can be done as many times as needed. Note: This no longer works with versions greater than v1.00.
Note: This procedure involves changing game files; create a backup copy of the files before proceeding. Enter the Robot Arena 2 folder. Go to the "ai" folder. Open a team folder and copy "bot.0", "bot.1", and/or "bot.2" to the "robot design" folder in the Robot Arena 2 folder. Load the game and enter Team HQ. Select or create a team, and choose an open slot. Do not enter the workshop. Select "Import Bot" at the bottom of the screen, and select an XTRA robot or one of the robots you have copied. For example, Team 0 is Red Zone. Copy bot.1 for the ALARM robot. Note: You can only copy one of the bot.0, bot.1, and bot.2 files. If you import a robot and export it, it will create the same robot under its name.
When making a bot, enter cheatbot2 as a case-sensitive bot name. A flash on the screen a sound will confirm correct code entry. This will unlock new weapons (although they appear under "mechanics"), such as the flamethrower, the cannon, electromagnet and the hover-craft engine. This cannot be used in multi-player mode. Note: The latest patch is required for this code.