rayman_player.zip

This download looks like an addon. You need to extract the downloaded zip and put the addon folder in your Garry's Mod addons folder. You should end up with a directory structure similar to below:

• steamapps
  • common
    • garrysmod
      • garrysmod
        • addons
          • Rayman Playermodel and NPC <-- Addon folder!
            • e.g.
            • lua
            • maps
            • materials
            • models
            • etc

• Rayman Playermodel and NPC/
  • lua/
    • autorun/
      • rayman.lua
      • rayman_npc.lua
  • materials/
    • models/
      • Rayman/
        • Rayman_pupil.vmt
        • Rayman_sheet.vmt
        • Rayman_sheet.vtf
    • VGUI/
      • entities/
        • npc_rayman.vmt
        • npc_rayman.vtf
  • models/
    • player/
      • Dasher_the_Echidna/
        • rayman.dx80.vtx
        • rayman.dx90.vtx
        • rayman.mdl
        • rayman.phy
        • rayman.sw.vtx
        • rayman.vvd
• readme.txt

TheKings, FOXRADEK THE FOX, 海綿寶寶, dadjk435, monkeydluffy12345, Scoolex, giuseppe.campana, zBryce, hellonintendo7, lea.panayotou, arturvitiuc, NekZ, Last Standing Poro, josemariaanton90, heloxfurry, linkreydefantas, a1_ahmed20, MrDuckbuild, BagOfChips, Royalomg, Dick Kickem [TDRR], Albree, MLG PRO 5962, thecraftinatorx, #Texo, combine2005, Datet616, megabricola25, ^2Nathan3197, riadkrimed, TriggerWinkle [SFM Posters], [DFS] PikaLenni95, efflucas, sparta567890, soapmctavish24, Dookatroopa, Dookatroopa