This is a debug build left by a modder. Press ~ (tilde) to open console, type restart and hit Enter. If that fails, reinstall.
: A warning message appears stating that a developer command has been written, followed by the game crashing or rebooting. plants vs zombies u53rdv
Please provide more context (e.g., "Is this a mobile hack?" or "I saw this in a YouTube video title") for a more precise answer. This is a debug build left by a modder