A Few level passwords
To access levels Ballistics: Ecks Vs Sever you need to input a password for that stage, here are some passwords for early stages:

ECKS MISSIONS

level 2: smokey
level 3: butterfly
level 4: covey
level 5: tiger

SEVER MISSIONS

level 2: raven
level 3: firefly
Level 4: Bulldog
Level 5: Dragon
Level 6: Loudmouth
Level 7: Stinger



Ecks Missions 2 - 5 Passwords
Enter these passwords on the password screen.

Level 2: SMOKEY
Level 3: BUTTERFLY
Level 4: COVEY
Level 5: TIGER

Sever Mission 2 Password
Level 2: RAVEN

Multi-player linkup
You can link up a Game Boy Advance with Ecks vs. Sever and a Game Boy Advance with Ballistic: Ecks vs. Sever 2 and still play all the multi-payer modes. The level combinations between the games are slightly glitched, but it still works.

DEATHWISH Invincibility
OOHSTOPIT One shot kills
MYBIGUN Rapid fire, shotgun
ACMEBANGS Extra explosion damage
COLDFEET Stupid AI
DOYOUCME Invisibility