When you installing CentOS, game also included in the the Operating system. Apart from the Games and Entertainment section there were games that were present in the gnome-games. However, there is the simple way to trace and remove this game. Please use below command:
[root@server ~]# yum grouplist | grep -i game
Games and Entertainment[root@server ~]# yum groupremove "Games and Entertainment"
Loaded plugins: fastestmirror
Setting up Group Process
Loading mirror speeds from cached hostfile
* addons: mirror.averse.net
* base: mirror.averse.net
* extras: mirror.averse.net
* updates: mirror.averse.net
Resolving Dependencies
--> Running transaction check
---> Package gnome-games.i386 1:2.16.0-2.el5 set to be erased
---> Package joystick.i386 0:1.2.15-20.2.2 set to be erased
--> Finished Dependency Resolution
Dependencies Resolved
=====================================================================================
Package Arch Version Repository Size
=====================================================================================
Removing:
gnome-games i386 1:2.16.0-2.el5 installed 19 M
joystick i386 1.2.15-20.2.2 installed 93 k
Transaction Summary
=====================================================================================
Remove 2 Package(s)
Reinstall 0 Package(s)
Downgrade 0 Package(s)
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
/var/tmp/rpm-tmp.61118: line 2: gconftool-2: command not found
/var/tmp/rpm-tmp.61118: line 4: gconftool-2: command not found
Erasing : joystick 1/2
error: %preun(gnome-games-2.16.0-2.el5.i386) scriptlet failed, exit status 127
Removed:
gnome-games.i386 1:2.16.0-2.el5 joystick.i386 0:1.2.15-20.2.2
Complete!