thats a good point, and a good solution.
may i suggest adding a little window for each peg/ball in the glossary to show them in action (except for the awesome ball of course)
not sure that will work with how the game is coded but ill keep it in mind
maybe just a pre-recorded video instead of an actual in-game demonstration, just something to make it easier to understand how, for example, the trash ball hits bronze twice but doesnt do anything else special.