A classic game!
The original Zombotron 2: Time Machine was never released as a separate, native Android application. Most websites offering a direct "Zombotron 2: Time Machine APK" are either redirecting to the Re-Boot version or providing outdated, potentially unsafe files. Game Overview & Story Zombotron Flash Game — Official Site zombotron 2 time machine download for android
Here is the frustrating truth for Android users: A classic game