1 Proper Completed Game = 1 XP.
[XP Table]
<2: Lvl. 0
2+: Lvl. 1
4+: Lvl. 2
8+: Lvl. 3
16+ Lvl. 4
32+ Lvl. 5
64+ Lvl. 6
128+ Lvl. 7
256+ Lvl. 8
512+ Lvl. 9
1024+ Lvl 10
Every +100 after 1024 = Paragon (1)

[PC] Lvl. 9
[NES/FDS] Lvl. 7
[SNES/BSX] Lvl. 6
[Arcade] Lvl. 6
[2600/5200] Lvl. 5
[Gen/MD] Lvl. 5
[GB/GBC] Lvl. 4
[TG-16, PC-CD, SG] Lvl. 4
[N64] Lvl. 4
[PSX] Lvl. 3
[Dreamcast] Lvl. 2
[Saturn] Lvl. 1
[MegaCD] Lvl. 2
[SMS] Lvl. 2
[Pinball] Lvl. 2
[3DO] Lvl. 2
[C-64] Lvl. 2
[MSX, SG-1000, X68K] Lvl. 2
[Ps2] Lvl. 2
[Wii] Lvl. 1
[GCN] Lvl. 1
[GBA] Lvl. 1
[Oculus Quest] Lvl. 1
[Amiga] Lvl. 1
[MSX] Lvl. 1
[Intellivision/ColecoVision] Lvl. 1
[PC-8801/9801] Lvl. 1