Yes. Seriously they're all good...well Deathsmiles is difficult at times because how the game works (enemies come from all sides, such as where your thumbs may be) while Mushi Bug Panic is completely different, although fun in it's own right if you like twin stick shooters.
If you're pinching pennies, (other than $1 Bug Panic) Dodonpachi Blissful Death is $3 now, and the separate versions of Espgaluda II (smartphone and arcade) are $4, which is their normal price (or $7 for the HD versions if you have a 4S/iPad 2/new). DDP BD isn't a universal app though, so if you're playing on iPad there'll be a black border and 2x button (that can be accidentally touched while playing). Hopefully it'll be updated to be like Bug Princess 1 and 2 to at least fill the screen.
If you're fine with whatever prices, just download the demos and try to figure out what you like from there. DDP Resurrection and Espgaluda II both have two modes, regular arcade and a new mode designed for phones, while Deathsmiles' extra mode is an item collection/gold grind/RPGesque thing if you're into that stuff.
Bug Panic is kind of a twin stick shooter with some simple exploration elements to the levels. The control mechanic is a bit different from most and works pretty well, and still has bullet hell (although it takes a few levels to get going iirc).
DDPBL and Bug Princess 2 are both relatively straight ports like Bug Princess 1.