I have 231 stamps at this moment. The hardest stamp for me to earn was the Mullet Capture stamp in Aqua Grabber because I would have him hooked onto the Aqua Grabber, but he would shift from side to side to escape. He would also try to crash into the wall, so he could be free, but it took hours of perserverance to be able to hear the "Ding!" and I knew then, I captured Mullet!
I have 231 stamps at this moment. The hardest stamp for me to earn was the Mullet Capture stamp in Aqua Grabber because I would have him hooked onto the Aqua Grabber, but he would shift from side to side to escape. He would also try to crash into the wall, so he could be free, but it took hours of perserverance to be able to hear the "Ding!" and I knew then, I captured Mullet!