I am not a lawyer; the following is not legal advice. If you really want to proceed with this direction of development you should consult an actual lawyer familiar with copyright law.
Since long I have wanted to create a mobile game based on some of my
favorite anime. I wanted to know do using character images and names
from those anime (even after giving full copyright credits and
disclaimer) infringes any copyrights ?
Copyright and intellectual property law varies from country-to-country. You're talking about anime, which means the source IP probably falls under Japanese copyright law.
I am even less familiar with Japanese law than US law, but in the US, it is not sufficient to "give credit" to avoid infringing copyright -- you need to obtain the permission of the copyright holder. Even though you may see others disclaiming that "no infringement was intended," that is not a firm ward against litigation.
It's possible that some things you want to use (such as the names of characters) do not fall under IP protection rights (or would be permissible under fair use), but others (such as character designs or images, or the proper name of the anime itself) may be subject to copyright, trademark or other equivalent IP protection. You'll really want a lawyer to help you untangle that mess.
Either find yourself a lawyer, or choose a different tack for your development plans that do not involve the potential legal ramifications of IP infringement.