<a href="http://x-hax.cultnet.net/MainMemory/SADXMDL.7z" target="_blank">SADXMDL 0.75</a> adds animation viewing, it doesn't seem to be perfect, but it's good enough. Check the 'Load Animation' checkbox and enter an address or you'll just get the model by itself. The 'Load model from animation' box will disable the model address input and load the model referenced by the animation instead. You'll have to leave this unchecked if you want to see Metal Sonic with animations. The [ and ] keys go backwards and forwards through the animation respectively. Also, the (very small) list of animations is at <a href="http://info.sonicretro.org/SCHG:Sonic Adventure DX: PC/Model Editing#Animation Locations" target="_blank" style="background: url(http://info.sonicretro.org/images/5/50/Reticon.png) right no-repeat; padding-right: 20px; border-bottom: 1px dotted #3366BB; color: #3366BB; cursor:pointer; text-decoration:none;" class="wiki">SCHG:Sonic Adventure DX: PC/Model Editing#Animation Locations</a>.