Because "jar hit" is not a standard technical term, it is likely a typo or slang. Based on the context of Opera Mini mods and legacy Java (J2ME) discussions, you are most likely looking for one of the following three things.
For those looking for a "proper review" of (often searched as "65jar" in reference to its Java/J2ME file format), this version was a milestone release that focused heavily on data awareness and usability for mobile users. opera mini 65jar hit
