As previously described, we find that Janus photo-responsive microswimmers obtained via TNA often display a "quasi-3D" motion, with extended "sliding-states" 62 punctuated by rapid, out-of-plane ballistic segments of motion. We observe a range of swimming behaviours, ranging from 2D motion typical of Janus catalytic microswimmers, to highly chiral motion characterised by multiple loops in a "roller-coaster" like behaviour (see Figure