19 Easter Eggs were found for "On Deadly Ground":

Item	Title	Rating
Quake 2: Ground Zero	Quake 2: Ground Zero Zor´s Easter-Eggs	2.0 with 1 votes
Mortal Kombat 2011	Deadly Alliance	6.0 with 1 votes
Tony Hawks Proving Ground	Flashback Movie Poster	7.0 with 1 votes
Myth II: Soulblighter	Mad,Deadly,Worldwide,Gangster,Communist,Frankenstien Computer God	3.5 with 12 votes
Ground Control	Exploding Fish	7.4 with 32 votes
Low to the Ground (The Waxwings)	Next to Nothing (Bonus Hidden Track)	8.4 with 5 votes
Tony Hawks Proving Ground	Thug in Thpg	6.5 with 2 votes
Small Deadly Space, A (Fight)	Hidden Song	6.0 with 6 votes
Fight ( A Small Deadly Space)	Pshyco Suicide	8.5 with 6 votes
Resident Evil: Deadly Silence	Touching Is Good!	8.0 with 2 votes
Battlefield 2142	Dice-cola	7.3 with 3 votes
Hitman: Blood Money	Secret Button	9.4 with 7 votes
Ring, The	Deadly Tape	7.4 with 98 votes
Sonic Adventure (Dreamcast)	A Big Suprise	3.9 with 126 votes
Hitman 3 Contracts	Top Banana	6.0 with 2 votes
Diablo	Hidden message on the ground	5.4 with 52 votes
Spiderman 2	Stan Lee Makes a Cameo	5.8 with 40 votes
Mercenaries: Playground of Destruction	Who's That?	7.5 with 2 votes
F.E.A.R.	Cheesy Poofs	3.9 with 9 votes