Hi, in the third level, just before a tunnel with a checkpoint in it and a teleporter on the other side, upstairs on the right side at the far end, there is a temple with a closed gate. An Ultra health and a Purr-Linn can be seen behind the bars (please see the attached picture), and I have not found how to go in. To my surprise, I found no mention of that on gamefaqs ; also checked a couple of videos on youtube about that part, and they did not go in. Does anyone know how to open it ? Thanks

I had missed that, thank you ! :)