Description:
After final battle game doesn't proceed to show the endgame sequence.
screenshot: http://steamcommunity.com/sharedfiles/filedetails/?id=136768251

System:

Processor Information:
    Vendor:  AuthenticAMD
    Speed: 3300 Mhz
    3 logical processors
    3 physical processors
    HyperThreading:  Unsupported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Unsupported
    SSE4a:  Supported
    SSE41:  Unsupported
    SSE42:  Unsupported

Network Information:
    Network Speed:  

Operating System Version:
    Ubuntu 12.04.2 LTS (64 bit)
    Kernel Name:  Linux
    Kernel Version:  3.2.0-39-generic
    X Server Vendor:  The X.Org Foundation
    X Server Release:  11103000
    X Window Manager:  Compiz
    Steam Runtime Version:  steam-runtime-release-i386_2013-03-25

Video Card:
    Driver:  ATI Technologies Inc. AMD Radeon HD 6900 Series

    Driver Version:  4.2.12172 Compatibility Profile Context 8.96.7
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 60 Hz
    VendorID:  0x1002
    DeviceID:  0x6718
    Number of Monitors:  1
    Number of Logical Video Cards:  1
    Primary Display Resolution:  1280 x 1024
    Desktop Resolution: 1280 x 1024
    Primary Display Size: 13.31" x 10.63"  (17.01" diag)
                                            33.8cm x 27.0cm  (43.2cm diag)
    Primary VRAM Not Detected

Sound card:
    Audio device: Realtek ALC662 rev1

Memory:
    RAM:  3954 Mb

Miscellaneous:
    UI Language:  English
    LANG:  en_US.UTF-8
    Microphone:  Not set
    Total Hard Disk Space Available:  366995 Mb
    Largest Free Hard Disk Block:  285566 Mb