VGChartz: “While the PSP definitely got off to a flying start in terms of sales thanks to the promise of console quality gaming on the go, things took a downturn in the following years due to a variety of factors including increasing competition from the DS & phones, and a lack of quality exclusives. In Japan, one franchise injected new life into the little handheld turning it from a decent seller into the must-have machine in the country - this was, of course, Monster Hunter.
Capcom's co-operative action-adventure series was born on the PS2 but found a much better audience on the PSP, where local ad-hoc play became somewhat of a phenomenon in the country. Each successive release sold better than the previous entry, culminating in Monster Hunter Portable 3rd clearing nearly 5 million copies. The stage was all set for the franchise to make the jump to Sony's new handheld in 2011, but in a surprise piece of news it was announced the series would instead be transitioning to Nintendo's new 3DS handheld.
With the audience still very much interested in buying a true next-gen successor on the Vita despite the hardware shift, other companies stepped in to attempt to plug the gap in the market, leading to a large variety of imitator franchises on the Vita. It's these series I'm intending to examine in this article - what they are (including many that actually pre-dated Monster Hunter or appeared alongside it on PSP), how many entries Vita saw, how well they sold, and how well they succeeded at providing a co-operative hunting experience.”