The gameplay of The Bogey Man, much like the previous episodes, is reminiscent of practically every other point and click adventure game out there. One difference though is that the inventory of the character you control (you control both Wallace and Gromit) is accessed by pressing I. In addition, characters are not moved by clicking the left mouse on the screen. Instead, the directional keys are used. The mouse can be used to interact with objects though.
As far as the actual gameplay goes, it is again the same as any other point and click title alongside the other episodes in the series. You'll navigate around a few environments and talk to characters, while picking up items and attempting to solve puzzles. If you get stuck, there is a built in hint system available but while the puzzles may have you thinking for a short while, the puzzles aren't hard when compared to other games in the genre. The puzzles though, and as a result the game, are less linear than the ones featured in the previous three games.
Overall, the gameplay is pretty decent but the main reason to play for seasoned adventure gamers is for the game's humor and characters.