These will be blocked on most school/work networks because they require downloads or console hardware.
If you are looking for a legitimate Pikmin experience in a limited environment: pikmin unblocked
Sites like or other retro gaming archives sometimes host versions of the original Pikmin (2001) or Pikmin 2 (2004). This allows players to experience the full, rich gameplay loop of: These will be blocked on most school/work networks
Platforms that run original GameBoy Advance or NES-style ports in a browser window. pikmin unblocked
It is important to distinguish between and unofficial ways to play.