Quake Easter Egg - Dopefish

1. Get all the way up to the level "Crypt of Decay" (e2m3).
2. Keep playing the level, moving higher and higher.
3. You will come to a room filled with spike shooters, one shoots out over a bridge in the large center area.
4. Go out half-way down the bridge and turn around.
5. You can faintly see a Quad Damage on a ledge to the right of the open corridor (with the spikeshooters).
6. Jump onto the Quad platform and move as far to the right (away from the corridor) as you can.
7. You will find a small walkway barely along the edge of the cliff in front of you (still facing away from the corridor).
8. Follow it and jump into the large water well.
9. The Dopefish Lives!!!