Wild Arms: Twilight Venom

They have characters that are similar. The stories are fantastically told. The combat scenes are cool to watch.  

Both anime were developed by Bee Train and are based on Sony PS1 games. Very similar in art and style as well story progression. If you enjoy one you will enjoy the other 

Having watched Wild Arms: TV years ago I felt an unexpected nostalgia while watching Grimoire of Zero. They do have distinctly different flavors in a high level summary. Wild Arms is to the tune of a western with gunslinging, a few deserts, outlaws, trains and the like. Grimoire of Zero is a more traditional fantasy world with magic predating technology or industry that one might expect an old adventure game to be based on. The factors I drew parallels on, however, are as follows: * A muscle-bound seasoned roughneck type character pairs with a runty character who is more mature than their size/apparent age, and the muscle-bound companion did not expect this pairing. * The Runt character is searching for something that has been stolen. * The plot is a whimsical adventure story. * Love and physical intimacy humor is sprinkled throughout in a naive, unjaded manner. * The runt character is gifted with a unique metaphysical power. read more 

Both are based on popular JRPG series as well as sharing an colorful cast of characters in high stakes action. 

Another good game adapted into a anime, tho with a slightly longer and interesting plot line. The animation and sound are very similar but it has the same kinda tone to the whole show. Its not actually part of any game but its a interesting side story in the games universe. When i think of either of these anime they both connect in my head so, yah i recommend if you like Eternia check out twilight venom. 

Both series deal about grown-up characters turn into little kids. 

If you really like guns and want more watch trigun better graphics but not tat good and has very good fights and best guns ull ever seen  

Both are based of JRPG's, Both are set in a Desert or deconstructed world. They both have characters with mysterious past that are revealed as the series goes on. With each episode containing it's own small story, but with thing adding up to the whole picture. Action, Adventure, definitely worth a check. 

Both are action adventure anime from the late 1990's that have a decent amount of fight scenes and comedy. Both anime feature a grown-up character turn into a little kid and go on a quest try to turn them back to an adult. 

Well the only similarity between these 2 anime is that they both turn into little kids 

Devil Hunter, Dante is the son of sparda, then the ARMs and gunslinger Sheyenne Rainstorm had many tricks on guns. But Dante is quite good than Sheyenne. Well never mind.