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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

NFL Gameday '99
Cheats By
Thunder2, Code Master, Sage
Cheat Device Used
Codes made & tested on version 3.2 cheat device

(Sony PSone™)

NFL Gameday '99
# Description Code
1 Home Team Score Modifier 80108456 ????
801088F0 ????
2 Away Team Score Modifier 80108458 ????
801088F4 ????
Easter Egg Codes
3 CREDITS 3010F360 0001
4 EVEN TEAMS 3010F361 0001
5 BIG BALLS 3010F362 0001
6 HAMSTRUNG 3010F363 0001
7 WEAK 3010F364 0001
8 BLINDERS 3010F365 0001
9 BIG HITS 3010F366 0001
10 STEEL LEG 3010F367 0001
11 STICKEM 3010F368 0001
12 ITS IN THE FPS 3010F369 0001
13 PRIME TIME 3010F36A 0001
14 TELE TUMMY 3010F36B 0001
15 DAVIS 3010F36C 0001
16 ROCKET MAN 3010F36D 0001
17 BOBO 3010F36E 0001
18 PRESIDENTS 3010F36F 0001
19 FLEA CIRCUS 3010F370 0001
20 GRUDGE MATCH 3010F371 0001
21 PLAYING CARDS 3010F372 0001
22 BUNYON 3010F373 0001
23 HANGTIME 3010F374 0001
24 POP WARNER 3010F375 0001
25 SLIDE SHOW 3010F376 0001
26 HOT SHOT 3010F377 0001
27 GD CHALLENGE 3010F378 0001
28 EGG HEAD 3010F379 0001
29 CPU SCORES 3010F37A 0001
30 CPU STUFFS 3010F37B 0001
31 MIND READER 3010F37C 0001
32 COFFEE BREAK 3010F37D 0001
33 SWIMMERS 3010F37E 0001
34 CON MAN 3010F37F 0001
35 EURO LEAGUE 3010F380 0001
36 PUPPETS 3010F381 0001
37 STAMINA 3010F382 0001
38 SPORTS 3010F383 0001
39 Max Endurance 80052A04 000B
80052A06 2414
40 Max Vertical 80052A18 000B
80052A1A 240D
41 Max Blocking 80052A28 000B
80052A2A 240F
42 Max Hands 80052A48 000B
80052A4A 240A
43 Max Tackling 80052A54 000B
80052A56 2405
44 Max Accuracy 80052A58 000B
80052A5A 2411
45 Max Throwing 80052A7C 000B
80052A7E 2412
46 Max Break Tackle 80052A8C 000B
80052A8E 240C
47 Max Durability 80052A9C 000B
80052A9E 240E
48 P1 Press R2 & Select For Home Score Increase (GS 2.2 Or Higher Needed!) D0144D02 FDFE
10108456 0001
D0144D02 FDFE
101088F0 0001
49 P1 Press R1 & Select For Home Score Decrease (GS 2.2 Or Higher Needed!) D0144D02 F7FE
11108456 0001
D0144D02 F7FE
111088F0 0001
50 P1 Press L2 & Select For Away Scare Increase (GS 2.2 Or Higher Needed!) D0144D02 FEFE
10108458 0001
D0144D02 FEFE
101088F4 0001
51 P1 Press L1 & Select For Away Score Decrease (GS 2.2 Or Higher Needed!) D0144D02 FBFE
11108458 0001
D0144D02 FBFE
111088F4 0001
52 Always Down Modifier (01-04) 801089DC 00??
53 Away Team Touch Down's Score Modifier 8005FF44 00??
54 Away Team Safety's Score Modifier 8005FACC 00??
55 Away Team Field Goal's Score Modifier 8005FCEC 00??
56 Home Team Touch Down's Score Modifier 8005FF18 00??
57 Home Team Safety's Score Modifier 8005FB08 00??
58 Home Team Field Goal's Score Modifier 8005FCC0 00??
59 2-Point Conversion's Score Modifier 8005DA3C 00??
60 Extra Point's Score Modifier 8005DB68 00??
Home Team Stats Modifier Codes
61 Total Offense 8010B368 ????
62 Passing Offense 8010B36A ????
63 Yards Per Pass 8010B36C ????
64 Rushing Yards 8010B36E ????
65 Yards Per Rush 8010B370 ????
66 Touchdowns 8010B372 ????
67 Field Goals 8010B374 ????
68 Long Pass 8010B376 ????
69 Long Rush 8010B378 ????
70 Long Kick Return 8010B37A ????
71 Long Punt Return 8010B37C ????
72 Total Defense 8010B37E ????
73 Passing Defense 8010B380 ????
74 Rushing Defense 8010B382 ????
75 Tackles 8010B384 ????
76 Sacks 8010B386 ????
77 Interceptions 8010B388 ????
78 Fumbles Caused 8010B38A ????
79 Fumbles Recovered 8010B38C ????
80 Give Aways 8010B38E ????
81 Take Aways 8010B390 ????
82 Converted Firsts 8010B392 ????
83 3rd Downs 8010B394 ????
84 3Rd Down Conv 8010B396 ????
85 3rd Down % 8010B398 ????
86 4th Downs 8010B39A ????
87 4th Down Conv 8010B39C ????
88 4th Down % 8010B39E ????
89 Offense Redzone 8010B3A0 ????
90 Redzone TDS 8010B3A2 ????
91 Redzone TD % 8010B3A4 ????
92 Redzone FG 8010B3A6 ????
93 Redzone Score % 8010B3A8 ????
94 2 Pt Atts 8010B3AA ????
95 2pt Conv 8010B3AC ????
96 Defense Redzone 8010B3AE ????
97 VS TD IN RZ 8010B3B0 ????
98 VS TD IN RZ % 8010B3B2 ????
99 VS FG IN RZ 8010B3B4 ????
100 VS RZ Scoring % 8010B3B6 ????
101 Penalties 8010B3B8 ????
102 Penalty Yards 8010B3BA ????
Away Team Stats Modifier Codes
103 Total Offense 8010B3BC ????
104 Passing Offense 8010B3BE ????
105 Yards Per Pass 8010B3C0 ????
106 Rushing Yards 8010B3C2 ????
107 Yards Per Rush 8010B3C4 ????
108 Touchdowns 8010B3C6 ????
109 Field Goals 8010B3C8 ????
110 Long Pass 8010B3CA ????
111 Long Rush 8010B3CC ????
112 Long Kick Return 8010B3CE ????
113 Long Punt Return 8010B3D0 ????
114 Total Defense 8010B3D2 ????
115 Passing Defense 8010B3D4 ????
116 Rushing Defense 8010B3D6 ????
117 Tackles 8010B3D8 ????
118 Sacks 8010B3DA ????
119 Interceptions 8010B3DC ????
120 Fumbles Caused 8010B3DE ????
121 Fumbles Recovered 8010B3E0 ????
122 Give Aways 8010B3E2 ????
123 Take Aways 8010B3E4 ????
124 Converted Firsts 8010B3E6 ????
125 3rd Downs 8010B3E8 ????
126 3Rd Down Conv 8010B3EA ????
127 3rd Down % 8010B3EC ????
128 4th Downs 8010B3EE ????
129 4th Down Conv 8010B3F0 ????
130 4th Down % 8010B3F2 ????
131 Offense Redzone 8010B3F4 ????
132 Redzone TDS 8010B3F6 ????
133 Redzone TD % 8010B3F8 ????
134 Redzone FG 8010B3FA ????
135 Redzone Score % 8010B3FC ????
136 2 Pt Atts 8010B3FE ????
137 2pt Conv 8010B400 ????
138 Defense Redzone 8010B402 ????
139 VS TD IN RZ 8010B404 ????
140 VS TD IN RZ % 8010B406 ????
141 VS FG IN RZ 8010B408 ????
142 VS RZ Scoring % 8010B40A ????
143 Penalties 8010B40C ????
144 Penalty Yards 8010B40E ????
(145 codes total)