You can play using a tablet or i-pad.
In theory, i-pad's can't reproduce any flash content. But you can download an app from your App Store so you can navigate and reproduce Flash.
We can recommend some of them such as "Puffin". It has a little cost but it has a free trial version. There are many more and they will be useful not only for Merchants or Triskelion but for every other Flash content. Anyway we recommend you use your PC for playing.