I think we should add the CI3, CI4, CI5 mode with the original 120-wave from these version and include some changes:
- Tourist, Rookie, Seasoned, Veteran, Virtuoso, Superstar Hero (only 3 in the original version)
- New look chicken.
- New types of chicken (from CI5 and CIU) can be appeared in CI3 and CI4 mode and only in Veteran, Virtuoso, Superstar Hero.
- All new weapons from CI5 and CIU can be appeared in CI3 and CI4 mode.
- We can collect key in CI3 mode
- Rocket model in CI3 mode