Skyrmions are chiral spin textures that exist in a variety of magnetic materials. These states are topologically non-trivial, which gives them stability expected to be useful for applications such as computer memory storage or spintronics computing. MnNiGa has recently been shown to exhibit biskyrmions, which are a novel variation on the skyrmion phase that are not well understood. We have previously shown that muon spin relaxation is a useful technique to probe the skyrmion state in other materials, and have recently performed an initial experiment at ISIS on MnNiGa. This experiment for the first time showed a signal that appears to reflect the dynamics of biskyrmions. We now propose to perform additional muon spin relaxation measurements to complete our study of the biskyrmion state in MnNiGa.