So this is now a free game, but its only allowing you to access 1 level of the game...so its not a full game. A Full game is just that...full game. It means access to all of the attributes of the game. Levels, mechanics, options, gearing, everything. This game is essentially a demo since we only have access to a small portion of the game, but full game mechanics.
If I let you play world 1-1 of Mario, where you have access to the games full mechanics, all of the powerups, but ONLY let you play world 1-1, would anyone consider that a full game?