That 36 MB/s has to be sustained from PSRAM to the LCD DMA, while the CPU (and LovyanGFX, used for graphics) are also writing ...
Splatterhouse got a handful of sequels through the early '90s, but the series essentially died after a 2010 Xbox 360 and PS3 ...
The 1990s were filled with great games, many of which went on to create massive series, but a few of the best have been forgotten by time.